Flat battery
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 14, 2021
Grant Date -
Dec 20, 2018
app pub date -
Aug 27, 2018
filing date -
Aug 27, 2018
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A flat battery of the present invention is a flat battery including an exterior can and a sealing can with which an opening of the exterior can is sealed, wherein the exterior can and the sealing can include a bottom portion and a circumferential wall extending upright from an outer circumference of the bottom portion and have a cylindrical shape that is open at one end; a distal end portion of the circumferential wall of the exterior can is bent toward a central axis of the sealing can to form a curve, whereby the exterior can is fixed to the sealing can by crimping; in a cross-sectional shape of the sealing can in the direction of the central axis, the circumferential wall of the sealing can is a single layer wall without being folded back, and the circumferential wall of the sealing can includes a rectilinear portion that is connected to the bottom portion via a corner portion; and an angle θ1 formed by the bottom portion and the rectilinear portion may be greater than 90°.
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